Nozzle



June 16, 1936. H, Huss 2,044,696

NOZZLE File Dec. 23, 1955 v INVEN'roR 'M ,MEQ 220W@- ATTORNEYS Patented June l16, 1936 UNITED 'STATES PATENT. OFFICE NOZZLE Henry Husa, Greenwich, Conn.

Application December 28, 1935, Serial No. 56,472-

One of the objects of my invention is the pro\ vision of a nozzle construction embodying a nozzle body containing a member which is equipped with an ejection orifice and a swirl chamber, this member coacting with a distributor head disconnectedtherefrom, a threaded stem, which is also disconnected from the distributor head, beingA provided for bringing the distributor head into contact with the member firstvmentioned for accurate seating, the distributor head being of such construction that by reversing the same in the nozzle the capacity of the nozzle can be changed.

The present invention, therefore, provides a nozzle of improved construction in that accurate seating of the distributor head is assured and the capacity of the nozzle can be varied at practi` cally no expense. y v

In the drawing accompanying this application I have shown an embodiment of my invention in sectional elevation. ai

It is to be noted that in devices of this` character dimensions are very small and for full emciency of the device it is necessary that the parts shall be exactly positioned. It must also be borne in mind that if the capacity of the burner nozzle is to be changed in the manner indicated above it is necessary that the construction be such that when the position oi the parts is altered for effecting this changein capacitythe parts will again align themselves with the necessary exactness and precision.

In burning oil, using nozzles of the type here under consideration, it is essential that the distributor head be precisely seated, inasmuch as otherwise more oil flows along one side of` the distributor head than along the other, resulting in a cone of atomized oil which is not uniformly asshown at 1, this bevel or recess extending to.

the swirl chamber B, as will be apparent from the drawing. A ,n

Coacting with this recessed or beveled face 1 of the member 4 is a distributor head 8 disconnected from the member 4, opposite ends of this 5 member being beveled as shown at 9 and I0. The taper or bevel of these ends of the distributor head conforms ,to the shape of the recess or bevel 'I in the rear face of the member 4. The end,9 of the distributor head is provided with tangen- 10 tial slots Il, the end lll being provided with tangential slots l2 of a. diierent dimension. 'I'hese slots or grooves conduct and direct oil or other A material being atomized to the swirl chamber of the nozzle. 15 I3 designates a threaded stem assembled into the nozzle body I, the threaded portion of this stem, which is somewhat enlarged in diameter with respect to the main portion of the. stem, being provided with a longitudinal and cross bore 20 i4 for the passage of oil or other material being atomized from an outside source of supply. The face of the inner end ofvthis stem is recessed or tapered as shown at l5 to the saine angle as the ends of the distributor head t. 25

When the stern i3 isy screwed into the no'zzle body so that the 'recessed end l5 thereof engages the tapered end l0 of the distributor head 8, the

, tapered end 9 of the head will be seated in the recessed rear face 1 of the member il, proper 30 seating of the distributor head being assured by reason of the i'act that the distributor head is disconnected rfrom the stem i3 and that both ends of the distributor head are tapered, the tapered end of the stem i3 engaging one end o1 the dis- 35 tributor head, the other tapered end of the distributor head seating in a correspondingly tapered recess, whereby the distributor head is allowedl a slight lateral play in seating thereby to compensate for any small eccentric motion of the 40 stem it.

This double tapered distributor head also adapts itself to the furtherance oi another object of my invention, i. e., changes in nozzle capacity, in, that by making the slots il and l2 of diiierent 45 dimensions it is merely necessary, when a change in nozzie capacity is desired, to reverse the disy tributor head in the nozzle body, my construction assuring of course accurate positioning of the 4distributor head in either position. 50

l. An atomizing nozzle comprising a body havlng a discharge orifice, a member in said body adjacent said discharge oriiice, provided with an ejection orice and with a swirl chamber com- 55 municating with each other and with said discharge orifice, said member being provided with a tapered surface at the rear of said swirl chamber, a distributor head in the said nozzle body the ends of which are tapered to correspond in form to said tapered surface, and a screw stem the forward end of which is provided with a tapered recess corresponding in form to the tapered ends of said distributor head, said distributor head being disconnected from said member andvfrom said stem, whereby as the stem is moved inwardly of the nozzle body the distributor head will be accurately seated on the tapered surface of the mst-mentioned member.

2. An atomizing nozzle comprising a body having a discharge orifice, a. member in said body adjacent said discharge orifice, provided with an ejection orifice and with a swirl chamber communicating with each other and with said discharge orifice, said member being provided with a tapered surface at the rear of said swirl chamber, a distributor head in the said nozzle body the ends of which are tapered to correspond in` form to said tapered surface, said tapered ends being provided with channels for conducting fluidl to said swirl chamber, and a. screw stem the forward end of which is provided with a tapered recess corresponding in form to the tapered ends of said distributor head, said distributor head being disconnected from said member and said stem, whereby as the stem is moved inwardly of the nozzle body the distributor head will be seated accurately on the tapered surface of the firstmentioned member.

3. An atomizing nozzle comprising a body having a discharge orifice, a member in said body adjacent said discharge orice, provided with an ejection orice and with a swirl chamber communicating with each other and with said discharge orifice, said member being provided with a tapered surface at the rear of said swirl chamber, a distributor head inthe said nozzle body the ends of which are tapered to correspond in form to said tapered surface, said tapered ends being provided with channels of dierent capacity for conducting duid to said swirl chamber, and a screw stem the forward end of which is provided with a tapered recess corresponding in 20 form to the tapered ends of said distributor head,

l said distributor head being disconnected trom, said member and from said stem, whereby as the stem ismoved inwardly of the nozzle body the distributor head will be seated onthe tapered surface of the rst mentioned member.

HENRY HUSS. 

